Rachel Uchitel: She Dated Elin's New Boyfriend!

7/16/2011 4:30 PM PDT BY TMZ STAFF

We told you yesterday ... Tiger Woods ex-wife is dating marketing exec Jamie Dingman, whose dad is a billionaire tycoon. But before Elin, sources tell TMZ Jamie and Rachel were an item -- and there was a little bit of an overlap with Jamie and Tiger, but Jamie bowed out to the golfer.

And get this ... at the time the Tiger Woods scandal broke, Jamie was living with Rachel in a MIami home.

And there's more. Remember the name, Jen Madden? She's the one who sold the Tiger Woods story in the first place, and she got the info because she stayed at the Miami home and overheard Rachel tell Jamie about her affair with Tiger.

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